Calculator



FIG. 1 is the front perspective view showing my new design;

FIG. 2 is the front view thereof;

FIG. 3 is the rear view thereof;

FIG. 4 is the left-hand view thereof;

FIG. 5 is the right-hand view thereof;

FIG. 6 is the top view thereof;

FIG. 7 is the bottom view thereof;

FIG. 8 is the front perspective view with lid open thereof;

FIG. 9 is the front view with lid open thereof;

FIG. 10 is the left side view with lid open thereof; and,

FIG. 11 is the top view with lid open thereof. 

The ornamental design for a "calculator", as shown and described. 